619,709+ Lead Backend Engineer Python Fastapi Cloud Jobs in UK — Top Companies Hiring June 2026

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Lead Backend Engineer Python, FastAPI & Cloud

Kallikor is seeking a key player to shape the future of their engineering teams in Greater London. This role involves leading a solution team, mentoring junior engineers, and driving technical innovation in their products. The ideal candidate has strong Python proficiency, experience with FastAPI and P ...

Backend Software Engineer Python FastAPI SQL

Backend Software Engineer / Developer (Python FastAPI SQL Databricks) London to £95kAre you a data centric Backend Software Engineer with strong Python, SQL and FastAPI skills?You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting ...

Backend Software Engineer Python FastAPI SQL

Backend Software Engineer / Developer (Python FastAPI SQL Databricks) London to £95kAre you a data centric Backend Software Engineer with strong Python, SQL and FastAPI skills?You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting ...

Python AI Backend Engineer (FastAPI + Snowflake)

Global is seeking a mid-level AI Engineer specializing in Python for their Global:IQ team in Greater London. This role involves backend engineering to develop scalable systems integral to their new intelligence platform, which harnesses data science and AI methodologies. Successful candidates will requ ...

Senior Python Backend Engineer — Remote, FastAPI & AWS

A leading recruitment agency is seeking a Senior Software Engineer with expertise in Python and AWS. The role offers the opportunity to design scalable backend systems in a remote-first or hybrid environment. You will work across rotating product squads, enabling full domain exposure while contributing to high-t ...

Backend Python Engineer — AI Driven, FastAPI, Hybrid London

Job title: Software Engineer Client: Not specified Salary: £120,000 per annum + Benefits Location: London (Hybrid / Flexible Working) The Role We’re supporting a rapidly growin ...

Python Backend Engineer – Cloud Integrations (Azure)

A professional services firm based in London is seeking a Backend Developer to lead the integration of their finance system into a cloud-based platform. The ideal candidate will have strong skills in Azure Service Bus and Python development, as well as experience in building robust integrations. This contract ro ...

Lead Backend Engineer, Python Microservices

Lead Engineer, Back End, Agentic intelligenceLondon, UnitedKingdomPosted 12 months agoTech stackecosystem Backend PythonJob Opportunity at Choreograph: Back-End EngineerChoreograph is seeking an experienced and forward-thi ...

Backend Engineer (Python)

London, UK · Hybrid (3 days in our Paddington HQ: Mon, Tue, Fri) · Stack: Python, Flask, SQLAlchemy, MySQL, AWS (React on the frontend)In 2018 we set out to solve a problem millions of people faced: not just struggling with their skin, but struggling to navigate skincare at all. We combined dermatology ...

Backend Engineer (Python)

London, UK · Hybrid (3 days in our Paddington HQ: Mon, Tue, Fri) · Stack: Python, Flask, SQLAlchemy, MySQL, AWS (React on the frontend)In 2018 we set out to solve a problem millions of people faced: not just struggling with their skin, but struggling to navigate skincare at all. We combined dermatology ...

Backend Engineer (Python)

Description London, UK Hybrid (3 days in our Paddington HQ: Mon, Tue, Fri) Stack: Python, Flask, SQLAlchemy, MySQL, AWS (React on the frontend) In 2018 we set out to solve a problem millions of people faced: not just struggling with their skin, but struggling to navigate skincare at all. We combined dermatology, ...

Senior Python Backend Engineer: APIs, Cloud & Data

A technology consulting firm is looking for a Senior Python developer to enhance applications for investor portfolio management. You will collaborate with business analysts and developers, focusing on designing production APIs, improving system efficiency, and employing cloud-native solutions. The ideal candidat ...

Python Developer AWS FastAPI

Python Developer / Software Engineer / Developer Remote UK to £75kAre you a backend focused Python Developer?You could be progressing your career in as a hands-on Python Developer role as part of a friendly and supportive international team at a growing and hugely successful European car ...

Python Developer AWS FastAPI

Python Developer / Software Engineer / Developer Remote UK to £75kAre you a backend focused Python Developer?You could be progressing your career in as a hands-on Python Developer role as part of a friendly and supportive international team at a growing and hugely successful European car ...

Senior Software Engineer Python GCP FastAPI

Senior Software Engineer / Developer (Python GCP FastAPI) London / WFH to £100kOpportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up.As a Senior Software Engineer you'll join a small, talented tech team to deliv ...

Senior Software Engineer Python GCP FastAPI

Senior Software Engineer / Developer (Python GCP FastAPI) London / WFH to £100kOpportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up.As a Senior Software Engineer you'll join a small, talented tech team to deliv ...

Backend Engineer / Backend Software Engineer (Python)

Join us as a Backend Engineer in the Chief Technology Office at Barclays where you’ll be developing cutting-edge AI platforms using state-of-the-art technologies. As part of our Chief Technology Office, you’ll work on implementing the latest AI/ML solutions for our bank. In this role, you'll collaborate wi ...

Hybrid Python Senior Software Engineer

We are hiring a Senior Software Engineer to lead end-to-end feature development and architectural design. This role is built for a technical leader who prioritizes high-impact delivery over routine maintenance. Tech Stack Backend: Python, FastAPI, Ruby on Rails Frontend: React.js, Next.js, React Native Cloud: AW ...

Senior Python Backend Lead Cloud & AWS (Hybrid Leeds)

A technology-driven company in Leeds seeks a Senior Python Developer to enhance their scalable cloud platform in Healthcare. In this role, you will design robust solutions, refine APIs, and contribute to a culture of mentorship and innovation. Candidates should have over 5 years of Python experience, excellent c ...

Lead Python Backend Engineer Processing & Observability

A leading technology firm is seeking a skilled software developer to enhance their data orchestration pipeline using Python. Join the Data Intelligence Team to work on AI features, develop observability for ML applications, and mentor peers. The role offers remote flexibility, a supportive work environment, and ...

Technical Lead Python | React | AWS | FastAPI | DevOps

Technical Lead - Python, React, FastAPI, AWS, DevOps Job Type: Contract/Temporary Location: Hounslow, London Our client is looking to recruit a highly capable Technical Lead to oversee Python, FastAPI, React, TypeScript, AWS, CI/CD, and DevOps automation; to take ownership of the ...

Cloud Backend Engineer

Signaloid provides computing platforms for dramatically reducing the runtime and compute infrastructure requirements of many critical workloads in the finance, robotics, and manufacturing sectors. Organizations can run their applications over our computing platforms and in the process replace time-consuming M ...

Cloud Backend Engineer

Signaloid provides computing platforms for dramatically reducing the runtime and compute infrastructure requirements of many critical workloads in the finance, robotics, and manufacturing sectors. Organizations can run their applications over our computing platforms and in the process replace time-consuming M ...

Hybrid Python Senior Software Engineer

We are hiring a Senior Software Engineer to lead end-to-end feature development and architectural design. This role is built for a technical leader who prioritizes high-impact delivery over routine maintenance. Tech Stack Backend: Python, FastAPI, Ruby on Rails Frontend: React.js, Next. ...

Senior Python Backend Engineer – APIs & Cloud (Hybrid London)

United States Digital Space LLC is searching for a Senior Backend Developer to join their team. This hybrid position requires 1-2 days in the office in London, E1. You will design and maintain backend applications that support complex workflows. The ideal applicant has strong experience in Python and A ...

Backend Software Engineer (Python)

About the roleAs the Signal Ocean Platform continues to grow, we’re expanding our engineering team. We’re looking for a Software Engineer capable of building and maintaining scalable back-end data services (primarily in Python) within the Modelling & Data Services team. Signal’s So ...

Backend Software Engineer (Python)

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide. Our platform delivers tailored, exclusive insights through web, mobile, and ...

Backend Software Engineer (Python)

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide. Our platform delivers tailored, exclusive insights through web, mobile, and ...

Software Engineer (Backend, Python)

About Octopus ElectroverseWe’re making electric vehicle ownership as smart and as simple as possible, by building the giant, virtual charging platform of the future.In just three years, Octopus Electroverse has grown to become one of the largest eMobility players globally, with over 1,40 ...

Backend Software Engineer (Python)

About the roleAs the Signal Ocean Platform continues to grow, we’re expanding our engineering team. We’re looking for a Software Engineer capable of building and maintaining scalable back-end data services (primarily in Python) within the Modelling & Data Services team. Signal’s So ...

Software Engineer (Backend, Python)

About Octopus ElectroverseWe’re making electric vehicle ownership as smart and as simple as possible, by building the giant, virtual charging platform of the future.In just three years, Octopus Electroverse has grown to become one of the largest eMobility players globally, with over 1,40 ...

Backend Software Engineer – Python

Python Software Engineer (Mid to Senior) – Backend Focus Remote (Ireland / Northern Ireland) | 1 day per month on site Company Overview A technology-driven digital business operating a large-scale consumer platform with significant daily user activity. This is a sm ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Python Developer FastAPI SQL Databricks

Python Developer / Backend Software Engineer (FastAPI SQL Databricks) London to £95kAre you a data centric Python Developer with strong SQL and FastAPI skills?You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provid ...

Python Developer FastAPI SQL Databricks

Python Developer / Backend Software Engineer (FastAPI SQL Databricks) London to £95kAre you a data centric Python Developer with strong SQL and FastAPI skills?You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provid ...

Hybrid Senior Python Engineer: FastAPI, Databricks & APIs

A leading recruitment firm is seeking a Senior Support Consultant to join a Global Insurance Leader's expanding Python Engineering team. The ideal candidate will design and build high-performance APIs and enhance existing platforms. Strong proficiency in Python, SQL, FastAPI, and Databricks is required. This rol ...

Senior Python AI Engineer (FastAPI) – Hybrid London

A technology consulting firm is seeking a Senior Software Engineer skilled in Python (FastAPI) and SQL to lead the design and build of AI-driven applications. This role involves developing data pipelines, mentoring junior engineers, and maintaining high engineering standards. Exceptional communication skills and ...

Remote Python AI Engineer — FastAPI & Model Training

Mercor is seeking a Python Software Engineer (SWE) to develop and maintain production-grade Python systems. The role involves designing modular codebases, optimizing performance, and collaborating with AI labs. This is a contract position offering $100 per hour with a commitment of 20 hours per week, a ...

Senior AI Driven SDLC Engineer (Python/FastAPI)

ClearRoute is seeking a hands-on technical lead in Greater London to deliver production-quality Python/FastAPI services on an agile platform. You will work directly with the chief architect and lead by example, owning contributions from development to production. The ideal candidate has strong experien ...

Remote Full Stack Engineer (Python, FastAPI, Django)

A leading software house in Cambridge is seeking software professionals to join their team. You will work on technically challenging projects in a friendly environment that promotes a good work/life balance. The role offers the chance to work with Python frameworks like Pyramid, Django, Flask, and FastAPI in an ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing firm in Greater London seeks a Senior Backend Engineer to design and develop backend systems across its platform. In this hands-on role, you'll implement scalable and secure services, ensuring high engineering standards. Ideal candidates will have expertise in Python, FastAPI, and clou ...

Lead Backend Engineer — Cloud & API Focus

User Experiences and Business Goals Making progress towards our business and team goals also includes focusing on enhancing user experiences. Who Are We Looking For? We are seeking individuals with expertise in languages like Java , C#, or Go (or similar backend languages). ...

Lead Backend Engineer — APIs, Data & Cloud

A leading AI platform company in Greater London is looking for a skilled backend developer who excels in Python and has experience with Flask and FastAPI. This role offers the opportunity to take technical leadership on diverse projects while working closely with cross-functional teams. You will be responsible f ...

Python AI Engineer PropTech London (onsite)

Job Description Lead Python Engineer | AI, Python, FastAPI, Django, Microservices, APIs, Cloud | London | up to £130k + EquityBuild AI-powered systems that automate real-world workflows at scale.This is an opportunity to join a fast-growing AI startup building ...

Python AI Engineer PropTech London (onsite)

Job Description Lead Python Engineer | AI, Python, FastAPI, Django, Microservices, APIs, Cloud | London | up to £130k + EquityBuild AI-powered systems that automate real-world workflows at scale.This is an opportunity to join a fast-growing AI startup building ...

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    Lead Backend Engineer Python Fastapi Cloud Jobs in United Kingdom Job Search Guide, Trends and Insights